Revert "Verify Pattern, step 2: Integrate behavior change for Pattern.split()."

This reverts commit 990d9dfa0432ff598aaf64519a5ce1129e822ee7.

Reason for revert: Broke CtsTextTestCases

Bug: 109659282
Bug: 110381464
Change-Id: I91e2cf50d17a6822690b375bc9fa83ecea84ce04
3 files changed